I'd like to be able to sort the thumbnail panel alphabetically rather than by creation date. I'd also like to be able to set the sort order.

The reason: I often manually create thumbnails or different versions of the same screenshot. As it is now, the new versions are not grouped with the original in the list, which would make much more sense.

Maybe this can this be done already? Is there a hidden setting in an ini file?

can't be done easily currently.. you can sort of do it if you go View -> Screenshot Panel -> Details yet, but it is planned. it's overdue really, i'll see if i can't get it coded this week, or this month at the latest.